Witch house kinda started with the band crystal castles that made WH (witch house) before the genre even existed and ispired the next generation of the genre's artists. WH itself first gained traction in the 2010s with the american band salem, oOOoOO and white ring.

We've entered the golden age of witch house, it will last until 2015. Youtubers "nightmare and 808s" and "untitled burial" have a good collection of songs from that period. DJ korrosiv sums it up in a witch house mix in 2014.

From 2016 onwards, the genre slows down and ther artists move to other stuff, cloud rap samples for example. The still active bands refine their own personallity: ic3peak, blvck ceiling, and sidewalks and skeleton, also a new generation starts taking over: △Sco△, funeral flowers. Witch house still exists, but most of its presence is in its influences of other genres, for example in tommy cash's leave me alone, wich samples ic3peak.